There are no active watches, warnings or advisories for Jefferson (Colorado).

Regional Radar Regional Infrared Satellite
Radar/Satellite images courtesy of Weather Underground.
METRIC | IMPERIAL
Updated: 01/26/2015 @ 5:50:00 pm  
Summary / Temperature Wind Rain/Melted Snow Fire Risk
Record High

Dry, Clear
Dry, Clear

57.1°F Colder 5.7°F than last hour.
---
Currently 57.1, Max: 71.0, Min: 41.0 Feels like:
57°F

24-hr
difference
4.8°FWarmer 4.8°F than yesterday at this time.
TEMP: HIGH: LOW:
Today: 71.0°F 41.0°F
12:00pm 6:07am
Yesterday: 59.8°F 42.0°F
2:40pm 5:32am
Record: 64.0°F -3.0°F
2002 1991
Normal: 44.0°F 25.0°F
 Wind from SSE SSE
2.1
Gust:
2
Light Air
60-Min Avg: 2.1 mph
120-Min Avg: 3.4 mph
Max Gust: 12 mph 2:53am
Month: 52 mph Jan 17
Today: 0.00 in
Yesterday: 0.00 in
Last
Rain:
01/21/2015
5:48 PM
January: 0.32 in
Last 7 Days: 0.26 in
Rain Season:1 0.32 in
Rain Days: 4 in 2015
4 days since last rain.
Chandler Burning Index
Chandler Burning Index: MODERATE
Currently:
67.4
at 5:50 PM
Barometer Humidity/Dew Point Sun/Moon
Current: 30.013 inHg Rising 0.008 °F/hr
1-Hr Trend: Steady
3-Hr Trend: Steady
Today: Todays High 30.124
Todays Low 30.003
Humidity: 26 % Increased 6% since last hour.
Humidex: 51.2°F     
Today: Todays High     
Todays Low     
Dew Point: 22.5°F Increased 1.6°F since last hour.
Wetbulb: 44.2°F     
Daylight:
Possible hours of Daylight
10:01
+ 00:01:57 Min
Evening Crescent, 6 days, 11 hours, 47 minutes in cycle
2% Illuminated
UV Summary/Forecast Solar Summary
High Today:   4.5 @ 12:06pm
27 Jan 2015   Low   2.6   
28 Jan 2015   Low   2.2   
High Today:   561 @ 12:13pm
Today: 04:24  Month: 51:50 Hrs
Rise: 7:12 AM  Set: 5:13 PM
Wind Chill Heating Degree Days Air Quality6
Current: 57.1°F
Today: 38.7°F  at 6:32am
Yesterday: 34.9°F
Last Week: 4.2°F
Record: -23.8°F   01-Feb-2011
Today: 9.7
January: 756.0
2015 to Date: 756.0
Cooling Degree Days
2015 to Date: 0.0
Current AQI

33


Good
Snow3 Irrigation Index5 Station All Time Records Cloud Level
Today: 0.00 in
Yesterday: 0.00 in
January: 11.00 in
Season Total:2 31.38 in
Snow Depth: 0.00 in
5 snow days in January
15 snow days this season.2
Updated at Midnight
Current: 0.10 in   
7-Days Rain: 0.26 in   
7-Days ET: 0.49 in   
7-Day: -0.232 in 0.232 in water in deficit of what evaporated in last 7 days.
January: -0.99 in 0.99 in water in deficit of what evaporated this month.
Outside Now
Air Density: 1.231 kg/m3
HIGHS: LOWS:
99.3°F
25-Jun-2012
-13.9°F
02-Feb-2011
Daytime Records
    95.5°F
25-Jun-2012
  -4.9°F
01-Feb-2011
Nitetime Records
  82.0°F
24-Jun-2012
-9.4°F
02-Feb-2011
ICN:1 ISS:Ok CON:4.6 RCP:97%
1 Rain season: Jan 1st to Dec 31st.    2 Snow season October 1st to September 30th.    3 Snow manually measured usually around 7AM and 7PM.    5 Estimated amount of water needed to replace the water used by plants and evaporation from the past week. (Negative numbers mean amount of water needed, positive numbers mean excess water is present.) 6 Air Quality Index is provided by Minnesota Polution Control Agency and is updated hourly between the hours of 6AM and Midnight.
 NWS Weather Forecast  -   Outlook Tonight & Tuesday
Tonight

Mostly Clear
Mostly
Clear
Lo 40 °F
NWS forecast: Mostly clear, with a low around 40. West southwest wind 7 to 9 mph.
WXSIM forecast: Clear. Low 36°. Wind west-southwest around 4 mph.
Tuesday

Sunny
Sunny

Hi 66 °F
NWS forecast: Sunny, with a high near 66. West wind 5 to 10 mph becoming light.
WXSIM forecast: Sunny. High 68°. Wind west-southwest around 3 mph in the morning, becoming northwest in the afternoon.
 NWS Short Term Weather Forecast
Tuesday

Sunny
Sunny

Hi 66 °F
Tuesday
Night

Partly Cloudy
Partly
Cloudy
Lo 39 °F
Wednesday

Partly Sunny
Partly
Sunny
Hi 52 °F
Wednesday
Night

Mostly Cloudy
Mostly
Cloudy
Lo 31 °F
Thursday

Mostly Cloudy
Mostly
Cloudy
Hi 42 °F
Thursday
Night

Mostly Cloudy
Mostly
Cloudy
Lo 32 °F
Friday

Slight Chc Rain
Slight Chc
Rain
Hi 48 °F
Friday
Night

Chance Snow
Chance
Snow
Lo 31 °F
Version 5.03 09-Apr-2010 - Script Mods by: WebsterWeatherLIVE.com
Some Colorado Weather Facts:
The earliest snowstorm recorded was September 3, 1961.

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